Quick Answer
The answer is to use `stats count by user` instead of `top` because the `top` command introduces unnecessary overhead by calculating percentages and sorting every result before applying the limit, while `stats count by user` performs a simple aggregation that can be sorted later with `sort 10 -count` for the same output. This directly improves search performance stats vs top by reducing processing load on large datasets. On the Splunk SPLK-1002 exam, this concept tests your understanding of transforming commands and their efficiency trade-offs—a common trap is assuming `top` is always the fastest way to get top values, when in fact `stats` with a sort is leaner for raw counts. Remember the memory tip: "Top adds fluff, stats is enough"—if you don’t need percentages, skip `top` and let `stats` do the heavy lifting.
This SPLK-1002 practice question tests your understanding of basic searching and transforming commands. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A search `index=main | top limit=10 user | fields - percent` is running slowly on a large dataset. Which change would likely improve performance the most?
Add a rex command before top
Why wrong: rex adds extra processing, slowing the search.
Use stats count by user instead of top
stats count is more efficient than top for counting.
Remove the fields command
Why wrong: Removing fields may help slightly but not significantly.
Add a time range early in the search
Why wrong: This is best practice but does not address the inefficiency of top.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use stats count by user instead of top
The `top` command is a transforming command that internally performs a `sort` and `limit` after counting events. On large datasets, `top` can be slower than `stats count by user` because `top` includes additional overhead for calculating percentages and sorting all results before limiting. Using `stats count by user` followed by `sort 10 -count` achieves the same result with less processing overhead, as `stats` is more efficient for simple aggregation.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Add a rex command before top
Why it's wrong here
rex adds extra processing, slowing the search.
Use stats count by user instead of top
Why this is correct
stats count is more efficient than top for counting.
Related concept
Read the scenario before looking for a memorised answer.
Remove the fields command
Why it's wrong here
Removing fields may help slightly but not significantly.
Add a time range early in the search
Why it's wrong here
This is best practice but does not address the inefficiency of top.
Common exam traps
Splunk often tests the misconception that `top` is the only or best way to get top values, when in reality `stats count by user` with `sort` and `head` is more performant for large datasets, and candidates may overlook that `top` includes hidden overhead for percentage calculation.
Detailed technical explanation
Under the hood, `top` uses the `eventstats` or `stats` command internally to compute counts and then calculates percentages by dividing each count by the total events. This percentage calculation requires an additional pass over the data, which is unnecessary if you only need the top users. In Splunk, `stats count by user` produces a single-pass aggregation, and adding `| sort -count | head 10` replicates `top limit=10` without the percentage overhead, making it significantly faster on datasets with millions of events.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the SPLK-1002 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Basic Searching and Transforming Commands — This question tests Basic Searching and Transforming Commands — Read the scenario before looking for a memorised answer..
The correct answer is: Use stats count by user instead of top — The `top` command is a transforming command that internally performs a `sort` and `limit` after counting events. On large datasets, `top` can be slower than `stats count by user` because `top` includes additional overhead for calculating percentages and sorting all results before limiting. Using `stats count by user` followed by `sort 10 -count` achieves the same result with less processing overhead, as `stats` is more efficient for simple aggregation.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This SPLK-1002 practice question is part of Courseiva's free Splunk certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SPLK-1002 exam.
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